Infrastructure considerations could include providing power to vehicles en route such as Sweden's experiment with overhead catenaries on their eHighway
as shown in Figure 77 .
Siemens' freight electrification eHighway system --marketed as combining the proven efficiency of railways with the flexibility of trucks--has the potential to make significant inroads into greening heavy transport.
Finally, eHighway trucks need a hybrid drive --Siemens is agnostic as to type--so that, while on electrified routes, its electric motors can be powered entirely via the system--meaning there is no drain on batteries.
The eHighway is twice as efficient as internal combustion engines.
The eHighway concept developed by Siemens combines tried and tested rail technology with the flexibility of road transport," says Jan Nylander, project leader for the County Council of Gavleborg.
of the Future project, undergoing tests in Germany, involves hybrid diesel--electric trucks that are equipped to connect to overhead wires.